Explanation of Dijet Asymmetry in Pb-Pb Collisions at the Large Hadron Collider

被引：130
|
作者：
Qin, Guang-You [1 ]
Mueller, Berndt [1 ]
机构：
[1] Duke Univ, Dept Phys, Durham, NC 27708 USA
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 16期
关键词：
JET RECONSTRUCTION; ENERGY-LOSS;
D O I：
10.1103/PhysRevLett.106.162302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the medium modification of a partonic jet shower traversing in a hot quark-gluon plasma. We derive and solve a differential equation that governs the evolution of the radiated gluon distribution as the jet propagates through the medium. Energy contained inside the jet cone is lost by dissipation through elastic collisions with the medium and by scattering of shower partons to larger angles. We find that the jet energy loss at early times is dominated by medium effects on the vacuum radiation, and by medium-induced radiation effects at late times. We compare our numerical results for the nuclear modification of the dijet asymmetry with that recently reported by the ATLAS Collaboration.
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页数：4
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